Spring wheel



Jan. 24, 1928. 1,656,986

L. F. NORDLING SPRING WHEEL Filed Feb. 10, 1925 w E Ward/fl? JNV 0R. 1 /Z 6' WW I ATTORNEY.

Patented Jan, 24, 1928.

UNITED STATES eases I PATENT OFFICE.

LEDVIN IF. NORDLING, O]? OSLO, LMINNESOTA.

SPRING WHEEL.

Application filed February to spring wheels of the curved spring spoke type, and the primary object of the invention is to provide a spring wheelof this kind which is extremely simple and durable in construction as well as efficient in operations A further object of the invention is to n'ovide a spring wheel which may be readily assembled or taken apart.

Other objects will appear as the nature of the invention is better understood, and the same consists in the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawing and claimed. i

In the drawing, wherein like reference characters indicate corresponding parts throughout the several views, i s

Figure 1 is a fragmentary side elevational view, partly broken away and in section, of a spring wheel constructed in accordance with the present invention;

Figure 2 is an enlarged fragmentary cle- \ational' view of the hub portion of the wheel shown in Figure 1 with one of the side hub plates ren'iovcd;

Figure 3 a radial section taken substantialby upon line 33 of .lligure 1;

Fig i 4i is a fragmentary transverse section taken substantially upon line 4-4 of Figure 1, and drawn on a larger scale to clearly show details of construction of the hub portion of the wheel shown in Figurel and the manner of attaching the spring spokes thereto; and

Figure 5 is a view similar to Figure 3 taken substantially upon line 5-5 of Fig ure 1.

Referring more in detail to the drawing, the present wheel embodies'an annular rigid folly band 5 adapted to have a solid-tire carrying-rii'n 6 snugly fitted and suitably secured. thereon, and resiliently connected to a central hub 7, so as to be normally disposed in spaced concentric relation thereto, by

10,1926. Serial No. 87,380. means of a plurality of radially extending curved spring spokes 8. i

As shown, the rim 6 is of integral con struction and of channel form in cross sect1on, and a solid cushion or rubber tire 9 is fitted therein with its tread portion projecting outwardly for engagement with the ground. 'lhetire 9 has a circumferentially extending metallic band 10 embedded in the base portion thereof, midway between the sides of the same as clearly shown in Figures 3 and 5, and bolts 11 extend transversely through the base of the tire at suitable intervals as well as through the side fianges of the rim 6 and adjacent to but outwardly of the band 10 whereby the tire is effectively held in place. Obviously, by removing the nuts from the bolts 11 and then removing the latter, the the 9 may be removed for renewal purposes when found necessary. i p i i The hub 7 embodies a solid and relatively thick metallic disk 12 having a central opening 13 adapted to accommodate an axle bearmg. r

The spring spokes 8 are in the nature of leaf springs composed of a' plurality of leaves suitably held together neartheir ends by means of clips 14, and each spring spoke embodies an arcuate intermediate portion and radial aligned oppositely projcctingcnd portions extending from the ends of the intel-mediate portion as shown clearly in Figure 1. The spokes are arranged so that the intermediate portions thereof project circuinferentially or in the plane of the wheel rather than laterally of the latter, and each iii spring comprises a pa r of similar leaves whose adjacent inner ends are directed circumferentially away from each other to form apertured flanges 15 which are seated in shallow peripheral recesses provided in the disk or plate 12.

The hub disk 12 is provided with a circular series of transverse slots or openings 16 which extend from side to side thereof,

- and each opening 16 is disposed in alignment with the inner end of it spoke 8 so thatthc flanges 15 of the leaves thereof may be rigidly bolted to the disk 12 as at 17. In this way the bolts are exposed in the openings 16 so that the nuts obviously employed therewith may be readily applied and tightened by the use of tools inserted into the openings The disk 12 provided with a circular series of t ansverse apertin'es l8 inwardly of the openings 16, and applied to opposite sides oi the spoke supporting dish 12 are side hub plates or disks; 19 whieh are lirnily elainped in place by ineanso'iibolts 20 passing thcrethrongh and through the apert-nres 1t"; oi. the disk 12. The side hnb plates 15) are of the well known gene 'al 'lforni employed in other hnb constructions and therefore have the nsnal central openings tor permitting the insertion ot a rehicl axle and hearing. The side hnb plates 15) are further ot the sanie diameter as the dial: 12 so that marginal portions thereof engage the sides oi the spoke flanges so as to ae ist the bolti-i 1.7 in rigidly ilastening" the spoken in place against lateril displacement relative to the disk 1&2. Theae hnb plate: 19 inrther act as closnre--z for the o iienings it to exclude dirt, dust. and other objectionable 'loreie'n matter. in: shown, one of the hub plates ll) may be provided with a suitable hnb rap portion :ll, either of the integral l'orni shown, or otherwise.

r m? shown clearly in Figures 1 and 5, the pair of leaves of each spring which are attaehcd to the dielr 152, are also directed apart cireninterentially at their outer ends to prin ride flange. which are conntenannl; in reecsses 223 l ornied in the inner surface of the telly band 5 and rigidly bolted to the latter as at :ll. The bolts which extend through the telly band 5 lot attaching the :z prinn spoken thereto preferably extend entirely throngh the telly band and are placed before the tire Ctll'ilylllg rini ti is mounted on the telly band.

li roin the above, it in apparent that npon removing one ot the side huh plates 19 access may be had to the nuts on the bolts whirh elainp the inner endn ol the spokes to the hub disk l2, whereby sneh nuts: may he ti litcned should the billllt' beeonle loose, and whereby the s nking spokes may be detached lor repair or .rei'iewal ahonld the heroine dai raged or broken.

in operation, the sliding; spokes will lie); when placed under load or subjected to wheel; so that the desired ahocl; l lJFOIlJlllQ t lllillllltr; are obtained in conjunction with the aolid cushion the 9.

Front the above description it, is believed that the construction and operation as well as the advz'intages of the present invention will be readily understood and appreciated by those skilled in the art.

Minor changes may be made without departing;- from the spirit and :scope o'l. the invention as claimed.

i r'hat l elaini as new is 1. A Spring wheel coniprinin r a hub dial; provided with a circular seriea of transverse openingsi a jl clly band anrroinnling and spaced from the hub dish, radial enrred rpring spoken reeilientl connecting the hub dieli and the telly band and normally nraintainingr them in concentric relation, and bolts Ht i'tlllllfif the inner o he oi the npoliea to the hub dial: and harinr nnhi threadial thereon within said openin ol hihnh (iii-1h.

2. i l ;-;prin e wheel ronipr n;- a bid; dial: provided will a circular ;-t*l'itH ot transrenr openings. a telly hand c--lll'ltllll1(llllli' and spaced from the hub dinlc. radial enrrr-d spring spoke: resiliently eonneetinn the nan dial and the lolly hand. and normally il1:llll taming then; in ronrenl "in relation. and hello :ecnrir the inner endn oi the rpoln-a to the hub d and l lti flll tl note threaded Ihereon within said openings ol hnh dish. aid

1hrepolrea eniliodriin; pairs ol loarea thinned at their ends and counter-eon]: in the periphery of the hnh dial; and the inner r-url'ace ol' the folly hand. r

S3. A spring wheel coin iriainn a hub dii-li prorided with a circular writ-s oi transverse openingii, a telly band surrounding and spaced from the hub dirk. radial carved spring spolces renilientlr connerliinl' the hub dial: and the telly band and norinallr llltlltl taii'iing them in conrmitricrclatioin node: sncnring the inner enda ol the rpolcen to the hub dial; and inning; nah-5" threaded thereon within said openingi ri ol' the hnh dial; aaid spotter: tlill)(lt i "\"lil i pairs ol leaves llilllfgtitl at; their enda and eonnternnnl; in the periphenr' oi? the hub dial: and the inner r-anrtzire of the telly band and l'ilill plalme bolted aniriinal on porite rltltri ot the hub dial; with niarejinal porrionn oi the mine engaging; lllt di e ol the llaneji-a on the inner enda ol the .--ptilteiin a r--pring wherh a l'ellr hand. liinh do; diepiaied within and spaced iron! the telly hand and provided with 1ransrerreopeninesr curred spring spohe eonnerlion' the telly hand to the llllll dial; and having thinned inner endn, and llllllri ira'l ring: the inner ends ot the epolqo lo the hub llFli and having nnte threaded thereon within the Uptlllll ol: aznd hnh tlltli.

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